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|標題:||Effects of spiked metals on the MSW anaerobic digestion||作者:||Lo, H.M.
|關鍵字:||Metals;municipal solid waste;anaerobic digestion;IC(50);biogas;municipal solid-waste;fermentative hydrogen-production;heavy-metals;trace-metals;particulate matter;granular sludge;bottom ash;bioreactors;reactor;acid||Project:||Waste Management & Research||期刊/報告no：:||Waste Management & Research, Volume 30, Issue 1, Page(s) 32-48.||摘要:||
This study aimed to investigate the effects of eight metals on the anaerobic digestion of the organic fraction of municipal solid waste (OFMSW) in bioreactors. Anaerobic bioreactors containing 200mL MSW mixed completely with 200mL sludge seeding. Ca and K (0, 1000, 2000 and 6000 mg L(-1)) and Cr, Ni, Zn, Co, Mo and W (0, 5, 50 and 100mg L(-1)) of various dose were added to anaerobic bioreactors to examine their anaerobic digestion performance. Results showed that except K and Zn, Ca (similar to 728 to similar to 1461 mg L(-1)), Cr (similar to 0.0022 to similar to 0.0212 mg L(-1)), Ni (similar to 0.801 to similar to 5.362 mg L(-1)), Co (similar to 0.148 to similar to 0.580 mg L(-1)), Mo (similar to 0.044 to similar to 52.94 mg L(-1)) and W (similar to 0.658 to similar to 40.39mg L(-1)) had the potential to enhance the biogas production. On the other hand, except Mo and W, inhibitory concentrations IC(50) of Ca, K, Cr, Ni, Zn and Co were found to be similar to 3252, similar to 2097, similar to 0.124, similar to 7.239, similar to 0.482, similar to 8.625mg L(-1), respectively. Eight spiked metals showed that they were adsorbed by MSW to a different extent resulting in different liquid metals levels and potential stimulation and inhibition on MSW anaerobic digestion. These results were discussed and compared to results from literature.
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